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Aerobic power and lean mass are indicators of competitive sprint performance among elite female cross-country skiers
Högskolan Dalarna, Akademin Utbildning, hälsa och samhälle, Idrotts- och hälsovetenskap.ORCID-id: 0000-0002-7178-5357
Högskolan Dalarna, Akademin Utbildning, hälsa och samhälle, Medicinsk vetenskap.ORCID-id: 0000-0003-1619-9758
Högskolan Dalarna, Akademin Utbildning, hälsa och samhälle, Idrotts- och hälsovetenskap.
2016 (Engelska)Ingår i: Open Access Journal of Sports Medicine, ISSN 1179-1543, E-ISSN 1179-1543, Vol. 7, s. 153-160Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The purpose of this study was to establish the optimal allometric models to predict International Ski Federation’s ski-ranking points for sprint competitions (FISsprint) among elite female cross-country skiers based on maximal oxygen uptake (V̇O2max) and lean mass (LM). Ten elite female cross-country skiers (age: 24.5±2.8 years [mean ± SD]) completed a treadmill roller-skiing test to determine V̇O2max (ie, aerobic power) using the diagonal stride technique, whereas LM (ie, a surrogate indicator of anaerobic capacity) was determined by dual-emission X-ray anthropometry. The subjects’ FISsprint were used as competitive performance measures. Power function modeling was used to predict the skiers’ FISsprint based on V̇O2max, LM, and body mass. The subjects’ test and performance data were as follows: V̇O2max, 4.0±0.3 L min-1; LM, 48.9±4.4 kg; body mass, 64.0±5.2 kg; and FISsprint, 116.4±59.6 points. The following power function models were established for the prediction of FISsprint: 3.91×105 ∙ VO -6.002maxand 6.95×1010 ∙ LM-5.25; these models explained 66% (P=0.0043) and 52% (P=0.019), respectively, of the variance in the FISsprint. Body mass failed to contribute to both models; hence, the models are based on V̇O2max and LM expressed absolutely. The results demonstrate that the physiological variables that reflect aerobic power and anaerobic capacity are important indicators of competitive sprint performance among elite female skiers. To accurately indicate performance capability among elite female skiers, the presented power function models should be used. Skiers whose V̇O2max differs by 1% will differ in their FISsprint by 5.8%, whereas the corresponding 1% difference in LM is related to an FISsprint difference of 5.1%, where both differences are in favor of the skier with higher V̇O2max or LM. It is recommended that coaches use the absolute expression of these variables to monitor skiers’ performance-related training adaptations linked to changes in aerobic power and anaerobic capacity.

Ort, förlag, år, upplaga, sidor
2016. Vol. 7, s. 153-160
Nyckelord [en]
V̇O2max, anaerobic capacity, cross-country skiing, allometric scaling
Nationell ämneskategori
Idrottsvetenskap
Forskningsämne
Hälsa och välfärd
Identifikatorer
URN: urn:nbn:se:du-23398DOI: 10.2147/OAJSM.S116672PubMedID: 27877070OAI: oai:DiVA.org:du-23398DiVA, id: diva2:1047366
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Open Access APC beslut 4/2017

Tillgänglig från: 2016-11-17 Skapad: 2016-11-17 Senast uppdaterad: 2017-11-29Bibliografiskt granskad

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Carlsson, TomasTonkonogi, MichailCarlsson, Magnus

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